1080789380 has 48 divisors (see below), whose sum is σ = 2492683200. Its totient is φ = 390364800.

The previous prime is 1080789337. The next prime is 1080789383. The reversal of 1080789380 is 839870801.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (1080789383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16295 + ... + 49265.

It is an arithmetic number, because the mean of its divisors is an integer number (51930900).

Almost surely, 2^1080789380 is an apocalyptic number.

1080789380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1080789380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1246341600).

1080789380 is an abundant number, since it is smaller than the sum of its proper divisors (1411893820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1080789380 is a wasteful number, since it uses less digits than its factorization.

1080789380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33140 (or 33138 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 1080789380 is about 32875.3612907904. The cubic root of 1080789380 is about 1026.2354739471.

The spelling of 1080789380 in words is "one billion, eighty million, seven hundred eighty-nine thousand, three hundred eighty".